I changed the default date format in the options>general options section to
Y-m-d, D
so that the date would format like
2007-02-24, Sat
It shows up correctly when I click "Update Options" and it shows me the preview, but when I go to "View Site" the dates still show up as
February 24th, 2007
which is the original default date format. It does this for both posts made before AND after I changed the date format as admin.
What am I doing wrong?